To model linear degradation paths, select Degradation Path Style > Simple Linear Path from the platform red triangle menu.

Use the Simple Linear Path Model specification to specify the form of the linear model that you want to fit to the degradation path. You can model linear paths, or nonlinear paths that can be transformed to linear. See Simple Linear Path Model Specification.

Simple Linear Path Options describes the options for the Simple Linear Path specification.

If you need to perform a transformation that is not given, use the Custom option. For example, to transform the response variable using exp(-x2), enter the transformation as shown in the Scale box in Custom Transformation Options. Also, enter the inverse transformation in the Inverse Scale box.

Name the transformation using the text box. When finished, click the Use & Save button to apply the transformation. Select a transformation from the menu if you have created multiple custom transformations. Click the Delete button to delete a custom transformation.